Ergonomic chair

ABSTRACT

An improved ergonomic chair, including a chair base, a chair cushion and a chair back located to the rear of the chair base. Support strength of cushion pads on the chair back assumes a fan-shape extending from a lower end towards the upper end, thereby dispersing the compressive stress on the lower back and supporting the back of a person. A support cushion is located on the chair back corresponding to the cervical vertebra of a person, and a head cushion, provided with a plurality of depressions, is located on the chair back above the support cushion. Accordingly, the design of the support cushion and the head cushion facilitating the dispersal of the compressive stress on the lower back and support of the back and cervical vertebra provide the chair back with the ability to appropriately support the cervical vertebra, thereby enabling neck pains to be avoided when sitting.

BACKGROUND OF THE INVENTION

(a) Field of the Invention

The present invention relates to an improved ergonomic chair, and moreparticularly to an ergonomic chair which enables a chair back toappropriately support the cervical vertebra, and thereby avoid neckpains when sitting.

(b) Description of the Prior Art

Chairs of the prior art are usually structured from a chair base, achair cushion and a chair back, wherein the chair cushion is disposed onthe chair base, and the chair back is joined to the chair cushion at anappropriate angle of inclination, thereby enabling the back of the userto lean against the chair back when sitting on the chair cushion.

However, chair backs of chairs of the prior art are unable toeffectively support the cervical vertebra, resulting in poor headpostures when sitting, thereby causing pressure on the peripheral nervesof the cervical vertebra when sitting or sleeping on chairs of the priorart for long periods of time and affecting development of the centralnervous system.

SUMMARY OF THE INVENTION

Hence, in light of the shortcomings of the aforementioned chairs of theprior art, the inventor of the present invention, having accumulatedknowhow and manufacturing experience of a diverse range of chairs,attentively researched various methods to resolve the shortcomings,which, following continuous research and improvements, culminated in thedesign of a completely new improved ergonomic chair of the presentinvention.

One objective of the present invention is to provide an improvedergonomic chair which enables a chair back to appropriately support thecervical vertebra, thereby enabling avoiding neck pains when sitting.

According to aforementioned objective, the ergonomic chair of thepresent invention comprises a chair base, a chair cushion and a chairback, wherein the chair base is fitted with front and rear chair feet,the chair cushion is located above the chair base, and the chair back islocated to the rear of the chair base. Support strength of cushion padson the chair back assumes a fan-shape extending from a lower end thereoftowards the upper end, thereby dispersing the compressive stress on thelower part of the trunk and supporting the back of a person. Aprotruding support cushion is located on the chair back corresponding tothe position of the cervical vertebra of a person, thereby supportingthe cervical vertebra of the person when sitting. A head cushion islocated on the chair back above the support cushion, and a plurality ofequally spaced depressions are arranged on the head cushion, therebyproviding support for the rear portion of a head of the person whensitting. Furthermore, the lower end of the chair back close to the lowerpart of the trunk of a person is a center point, and two sides of thesupport cushion gradually slant towards the center point to assume afan-shape extending from the upper end to the lower end, and each of thedepressions are also arranged to gradually slant towards the centerpoint to assume a fan-shape extending from the upper end to the lowerend. Accordingly, the design of the support cushion and the head cushionfacilitating the dispersal of the compressive stress on the lower partof the trunk and support of the back and cervical vertebra of a personprovide the chair back with the ability to appropriately support thecervical vertebra, thereby enabling neck pains to be avoided whensitting, at the same time, the slanting design enabling the supportcushion and each of the depressions to assume a fan-shape appropriatelysupports the cervical vertebra regardless of how the user changessitting posture, thereby avoiding neck pains from occurring due to poorsitting postures.

To enable a further understanding of said objectives and thetechnological methods of the invention herein, a brief description ofthe drawings is provided below followed by a detailed description of thepreferred embodiments.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is an external elevational view of an ergonomic chair of thepresent invention.

FIG. 2 is a schematic view of the ergonomic chair of the presentinvention in use.

FIG. 3 is a partial enlarged schematic view 1 of the ergonomic chairshowing a use state according to the present invention.

FIG. 4 is a partial enlarged schematic view 2 of the ergonomic chairshowing a use state according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

The present invention relates to an improved ergonomic chair. Referringto FIGS. 1 and 3, which show an ergonomic chair 10 of the presentinvention comprising a chair base 20, a chair cushion 30 and a chairback 40, wherein the chair base 20 is fitted with front and rear chairfeet 21, 22, the chair cushion 30 is located above the chair base 20,and the chair back 40 is located to the rear of the chair base 20.Support strength of cushion pads 41 on the chair back 40 assumes afan-shape extending from a lower end thereof towards the upper end,thereby dispersing the compressive stress on the lower part of the trunkand supporting the back of a person 50. A protruding support cushion 42is located on the chair back 40 corresponding to the position of thecervical vertebra of a person, thereby supporting the cervical vertebra51 of the person 50 when sitting. A head cushion 43 is located on thechair back 40 above the support cushion 42, and a plurality of equallyspaced depressions 44 are arranged on the head cushion 43, therebyproviding support for the rear portion of a head 52 of the person 50when sitting. Furthermore, the lower end of the chair back 40 close tothe lower part of the trunk of the person 50 is a center point, and twosides of the support cushion 42 gradually slant towards the center pointto assume a fan-shape extending from the upper end to the lower end, andeach of the depressions 44 are also arranged to gradually slant towardsthe center point to assume a fan-shape extending from the upper end tothe lower end.

According to the assembly of the aforementioned components, andreferring to FIGS. 2, 3 and 4, when sitting on the ergonomic chair 10 ofthe present invention, the design of the ergonomic chair 10 enabling thechair back 40 to disperse the compressive stress on the lower part ofthe trunk and support the back of the person 50, and enabling thesupport cushion 42 to support the cervical vertebra 51 of the person 50,as well as enabling the depressions 44 of the head cushion 43 to supportthe head of the person 50 provide the chair back 40 with the ability toappropriately support the cervical vertebra. Hence, neck pains can beavoided when sitting for long periods of time (when sleeping on theergonomic chair 10 of the present invention), at the same time, theslanting design that enables the support cushion 42 and each of thedepressions 44 to assume a fan-shape appropriately supports the cervicalvertebra regardless of how the user changes his sitting posture (orsleeping posture) also enables avoiding neck pains from occurring due topoor sitting postures.

Referring again to FIGS. 3 and 4, groove widths of the depressions 44 ofthe head cushion 43 are over two-thirds larger than the head width ofthe person 50.

In the present invention, because of the support strength of the cushionpads 41 (see FIGS. 1 and 2) of the chair back 40 assuming a fan-shapeextending from the lower end of the chair back 40 towards the upper end,and the lower end exactly corresponding to the lower part of the spineof the person 50, thus, the center point of the fan-shape is at thecoccygeal vertebra. Hence, the chair back 40 is provided with theability to disperse the compressive stress on the lower part of thetrunk and support the back of the person 50. Accordingly, the spine ofthe person 50 is correctly supported when sitting, thereby avoiding neckpains due to poor sitting postures, and preventing pressure on theperipheral nerves of the cervical vertebra, which would otherwise resultin serious neck pains and affect development of the central nervoussystem.

Referring again to FIG. 1, the chair cushion 30 can be a sponge cushion,thereby providing the user with a soft and comfortable experience whensitting thereon.

Referring again to FIG. 1, the cushion pads 41, the support cushion 42and the head cushion 43 can be sponge cushions, thereby providing theuser with a soft and comfortable experience when sitting.

In conclusion, the improved ergonomic chair of the present invention isassuredly provided with an innovative structure not found in the priorart. Moreover, no similar products have been seen in any publication orin the market; the present invention is thus provided with undoubtedoriginality. In addition, the present invention is provided with uniquecharacteristics and functionality that are without comparison in theprior art. Hence, the incomparable advancement of the present inventionclearly complies with the essential elements as required for a newpatent application. Accordingly, a new patent application is proposedherein.

It is of course to be understood that the embodiments described hereinare merely illustrative of the principles of the invention and that awide variety of modifications thereto may be effected by persons skilledin the art without departing from the spirit and scope of the inventionas set forth in the following claims.

1. An ergonomic chair, comprising: a chair base, the chair base isfitted with front and rear chair feet; a chair cushion, the chaircushion is located above the chair base; and a chair back, the chairback is located rear to the chair base; support strength of cushion padson the chair back assumes a fan-shape extending from a lower end thereoftowards the upper end, thereby dispersing the compressive stress on thelower part of the trunk and supporting the back of a person, aprotruding support cushion is located on the chair back corresponding tothe position of the cervical vertebra of a person, thereby supportingthe cervical vertebra of the person when sitting, a head cushion islocated on the chair back above the support cushion, and a plurality ofequally spaced depressions are arranged on the head cushion, therebyproviding support for the rear portion of a head of the person whensitting, in addition, the lower end of the chair back close to the lowerpart of the trunk of the person is a center point, and two sides of thesupport cushion gradually slant towards the center point to assume afan-shape extending from the upper end to the lower end, and each of thedepressions are arranged to gradually slant towards the center point toassume a fan-shape extending from the upper end to the lower end;accordingly, the design of the support cushion and the head cushionfacilitating the dispersal of the compressive stress on the lower partof the trunk and support of the back and cervical vertebra of a personprovide the chair back with the ability to appropriately support thecervical vertebra, thereby enabling neck pains to be avoided whensitting, at the same time, the slanting design enabling the supportcushion and each of the depressions to assume a fan-shape appropriatelysupports the cervical vertebra regardless of how the user changessitting posture, thereby avoiding neck pains from occurring due to poorsitting postures.
 2. The ergonomic chair according to claim 1, whereingroove widths of the depressions of the head cushion are over two-thirdslarger than the head width of a person.
 3. The ergonomic chair accordingto claim 1, wherein the chair cushion is a sponge cushion.
 4. Theergonomic chair according to claim 1, wherein the cushion pads, thesupport cushion and the head cushion are sponge cushions.